1) how to set the exact Soft start timings by choosing a CSS capacitor?
[edited by: Nikhil26 at 3:20 PM (GMT -4) on 24 Mar 2022]
I have already answered this question on your other question.
You can use the formula below in computing for the appropriate soft-start capacitor:
Css=(tss*2uA /0.8V) F
Css = capacitance required in Farads(F)
tss = desired soft-start timing in seconds(s)
2uA is the charging current for LTM8051 while 0.8V is its reference voltage for soft-start voltage.
For this instance, you need to change the 2uA and 0.8V depending on the controller you are using.
First Of all, sorry for being unclear.
The Current is getting divided in LT3072 LDO. I don't think Reference voltage and Charging Current is that Straight Forward. Can you specify Charging current? The reference voltage is 1.2V if I'm not wrong.